WPF Docking Library

<custom:Pane x:Class="DockingLibrary.DocumentsPane"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	xmlns:custom="clr-namespace:DockingLibrary"  >
	<custom:Pane.Resources>
	<Style x:Key="DocTabItemStyle" TargetType="{x:Type TabItem}">
			<Setter Property="Template">
				<Setter.Value>
					<ControlTemplate>
						<Border VerticalAlignment="Bottom" Height="18" BorderThickness="1,1,1,0" CornerRadius="4,4,0,0" x:Name="border" PreviewMouseDown="OnTabItemMouseDown" MouseUp="OnTabItemMouseUp" MouseMove="OnTabItemMouseMove">
							<Border.Background>
								<LinearGradientBrush EndPoint="0.5,0.0" StartPoint="0.5,1">
									<GradientStop Color="{DynamicResource {x:Static SystemColors.ActiveBorderColorKey}}" Offset="0"/>
									<GradientStop Color="#FFFFFFFF" Offset="1"/>
								</LinearGradientBrush>
							</Border.Background>
							<Border.BorderBrush>
								<SolidColorBrush Color="{DynamicResource {x:Static SystemColors.AppWorkspaceColorKey}}"/>
							</Border.BorderBrush>
							<ContentPresenter Content="{TemplateBinding HeaderedContentControl.Header}" Margin="2,0,0,0" x:Name="header"/>
						</Border>
						<ControlTemplate.Triggers>
							<Trigger Property="Selector.IsSelected" Value="True">
								<Setter Property="Background" TargetName="border">
									<Setter.Value>
										<SolidColorBrush Color="{DynamicResource {x:Static SystemColors.ControlLightLightColorKey}}"/>
									</Setter.Value>
								</Setter>
								<Setter Property="TextBlock.FontWeight" Value="Bold" TargetName="header"/>
							</Trigger>
						</ControlTemplate.Triggers>
					</ControlTemplate>
				</Setter.Value>
			</Setter>
		</Style>
   
		<Style x:Key="DocumentsTabSwitchMenuButtonStyle" TargetType="{x:Type Button}">
			<Setter Property="Template">
				<Setter.Value>
					<ControlTemplate>
						<Border Height="18">
							<Path Stretch="Fill" Stroke="#FF000000" StrokeEndLineCap="Square" StrokeLineJoin="Round" StrokeThickness="0" Height="Auto" Data="M3,3 L13,3 L8,15" Margin="3,6,3,3">
								<Path.Fill>
									<SolidColorBrush Color="{DynamicResource {x:Static SystemColors.ControlTextColorKey}}"/>
								</Path.Fill>
							</Path>
						</Border>
					</ControlTemplate>
				</Setter.Value>
			</Setter>
		</Style>

		<Style x:Key="DocumentsTabCloseButtonStyle" TargetType="{x:Type Button}">
			<Setter Property="Template">
				<Setter.Value>
					<ControlTemplate>
						<Border Height="18" Padding="0,1,0,1">
							<Grid>
								<Path Fill="#FFFFFFFF" Stretch="Fill" Stroke="#FF000000" Margin="3,3,3,3" Data="M0,0L1,1"/>
								<Path Fill="#FFFFFFFF" Stretch="Fill" Stroke="#FF000000" Margin="3,3,3,3" Data="M1,0L0,1"/>
							</Grid>
						</Border>
					</ControlTemplate>
				</Setter.Value>
			</Setter>
		</Style>

		<ControlTemplate x:Key="DocumentsTabControlTemplate" TargetType="{x:Type TabControl}">
			<Grid x:Name="Grid" KeyboardNavigation.TabNavigation="Local">
				<Grid.ColumnDefinitions>
					<ColumnDefinition x:Name="ColumnDefinition0"/>
					<ColumnDefinition x:Name="ColumnDefinition1" Width="0"/>
				</Grid.ColumnDefinitions>
				<Grid.RowDefinitions>
					<RowDefinition x:Name="RowDefinition0" Height="Auto"/>
					<RowDefinition x:Name="RowDefinition1" Height="*"/>
				</Grid.RowDefinitions>
				<Border Grid.Row="1" Grid.Column="0" x:Name="ContentPanel" BorderBrush="#FFD0CEBF" BorderThickness="0,0,1,1" KeyboardNavigation.TabIndex="2" KeyboardNavigation.TabNavigation="Local" KeyboardNavigation.DirectionalNavigation="Contained">
					<Border x:Name="Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}">
						<Border Background="{TemplateBinding Background}" x:Name="Border1">
							<ContentPresenter DataContext="{x:Null}" Margin="{TemplateBinding Padding}" x:Name="PART_SelectedContentHost" Content="{TemplateBinding SelectedContent}" ContentTemplate="{TemplateBinding SelectedContentTemplate}" ContentTemplateSelector="{TemplateBinding SelectedContentTemplateSelector}" ContentSource="SelectedContent"/>
						</Border>
					</Border>
				</Border>
				<ScrollViewer x:Name="HeaderPanel" Grid.Row="0" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Margin="0,0,0,0" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Disabled">
					<ScrollViewer.Style>
						<Style TargetType="{x:Type ScrollViewer}">
							<Setter Property="Template">
								<Setter.Value>
									<ControlTemplate>
										<Grid Margin="0,0,0,0" Grid.Row="0" Grid.Column="0" x:Name="HeaderPanel">
											<Grid.ColumnDefinitions>
												<ColumnDefinition Width="*"/>
												<ColumnDefinition Width="16"/>
												<ColumnDefinition Width="16"/>
											</Grid.ColumnDefinitions>
											<Grid.RowDefinitions>
												<RowDefinition Height="Auto"/>
											</Grid.RowDefinitions>
											<ScrollContentPresenter Grid.Column="0" Content="{TemplateBinding ScrollViewer.Content}" />
											<Button Grid.Column="1" Style="{StaticResource DocumentsTabSwitchMenuButtonStyle}" PreviewMouseDown="OnBtnDocumentsMenu">
											</Button>
											<Button Grid.Column="2" Style="{StaticResource DocumentsTabCloseButtonStyle}" PreviewMouseDown="OnBtnDocumentClose"/>
										</Grid>
 									</ControlTemplate>
 								</Setter.Value>
 							</Setter>
 						</Style>
 					</ScrollViewer.Style>
 				
					<StackPanel IsItemsHost="True" Orientation="Horizontal" Background="{x:Null}" KeyboardNavigation.TabIndex="1" />
				</ScrollViewer>

    </Grid>
	</ControlTemplate>
	
	</custom:Pane.Resources>
	<Grid>
		<TabControl Name="tbcDocuments" IsSynchronizedWithCurrentItem="True"   Template="{DynamicResource DocumentsTabControlTemplate}" Visibility="Collapsed">
		</TabControl>
	</Grid>
</custom:Pane>